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Needlelike, as the leaves of pine; acerate.

[New Latin acerōsus, incorrect use of Latin acerōsus, full of chaff (as if from acus, needle, or ācer, sharp), from acus, acer-, chaff; see ak- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈæsəˌrəʊs; -ˌrəʊz) (ˈæsəˌrəs) or


(Botany) shaped like a needle, as pine leaves
[C18: from Latin acerōsus full of chaff (erroneously used by Linnaeus as if derived from ācer sharp)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈæs əˌroʊs)

needle-shaped, as the leaves of the pine.
[1775–85; misattribution of acer- to Latin acus needle, whose s. is acu- and not acer- (compare acute)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.acerose - narrow and long and pointedacerose - narrow and long and pointed; as pine leaves
unsubdivided, simple - (botany) of leaf shapes; of leaves having no divisions or subdivisions
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.